Home / 215,382,706.72-323,080,632.02-84,219,743.68

Finding the Fourth Proportional to 215,382,706.72, 323,080,632.02 and 84,219,743.68

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Solution

The fourth proportional to 215,382,706.72, 323,080,632.02 and 84,219,743.68 is: 126,332,185.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,382,706.72 : 323,080,632.02 = 84,219,743.68 : x
  2. Step 2: Convert to fraction form
    215,382,706.72/323,080,632.02 = 84,219,743.68/x
  3. Step 3: Cross multiply
    215,382,706.72x = 323,080,632.02 × 84,219,743.68
  4. Step 4: Simplify right side
    215,382,706.72x = 27,209,768,016,696,800
  5. Step 5: Solve for x
    x = 27,209,768,016,696,800/215,382,706.72
  6. Step 6: Final answer
    x = 126,332,185.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.